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<font size="4">PushletApplet.java</font>
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<FONT ID="LN">1 </FONT><A NAME="1"></A><FONT ID="SingleLineComment">// Copyright (c) 2000 Just Objects B.V. &lt;just@justobjects.nl&gt;
<FONT ID="LN">2 </FONT><A NAME="2"></A></FONT><FONT ID="SingleLineComment">// Distributable under LGPL license. See terms of license at gnu.org.
<FONT ID="LN">3 </FONT><A NAME="3"></A></FONT>
<FONT ID="LN">4 </FONT><A NAME="4"></A><FONT ID="Package">package</FONT> <A HREF="../../../../nl.justobjects.pushlet.test.index.html" target="packageFrame">nl.justobjects.pushlet.test</A>;
<FONT ID="LN">5 </FONT><A NAME="5"></A>
<FONT ID="LN">6 </FONT><A NAME="6"></A><FONT ID="Import">import</FONT> <A HREF="../../../../nl/justobjects/pushlet/client/PushletClient.java.html">nl.justobjects.pushlet.client.PushletClient</A>;
<FONT ID="LN">7 </FONT><A NAME="7"></A><FONT ID="Import">import</FONT> <A HREF="../../../../nl/justobjects/pushlet/client/PushletClientListener.java.html">nl.justobjects.pushlet.client.PushletClientListener</A>;
<FONT ID="LN">8 </FONT><A NAME="8"></A><FONT ID="Import">import</FONT> <A HREF="../../../../nl/justobjects/pushlet/core/Event.java.html">nl.justobjects.pushlet.core.Event</A>;
<FONT ID="LN">9 </FONT><A NAME="9"></A><FONT ID="Import">import</FONT> <A HREF="../../../../nl/justobjects/pushlet/core/Protocol.java.html">nl.justobjects.pushlet.core.Protocol</A>;
<FONT ID="LN">10</FONT><A NAME="10"></A><FONT ID="Import">import</FONT> <A HREF="../../../../nl/justobjects/pushlet/util/PushletException.java.html">nl.justobjects.pushlet.util.PushletException</A>;
<FONT ID="LN">11</FONT><A NAME="11"></A>
<FONT ID="LN">12</FONT><A NAME="12"></A><FONT ID="Import">import</FONT> java.applet.Applet;
<FONT ID="LN">13</FONT><A NAME="13"></A><FONT ID="Import">import</FONT> java.awt.*;
<FONT ID="LN">14</FONT><A NAME="14"></A>
<FONT ID="LN">15</FONT><A NAME="15"></A><FONT ID="FormalComment">/**
<FONT ID="LN">16</FONT><A NAME="16"></A> * Tester for applet clients; displays incoming events in text area.
<FONT ID="LN">17</FONT><A NAME="17"></A> *
<FONT ID="LN">18</FONT><A NAME="18"></A> * @version $Id: PushletApplet.java,v 1.16 2005/02/18 09:54:15 justb Exp $
<FONT ID="LN">19</FONT><A NAME="19"></A> * @author Just van den Broecke - Just Objects &amp;copy;
<FONT ID="LN">20</FONT><A NAME="20"></A> **/</FONT>
<FONT ID="LN">21</FONT><A NAME="21"></A><FONT ID="Public">public</FONT> <FONT ID="Class">class</FONT> PushletApplet <FONT ID="Extends">extends</FONT> Applet <FONT ID="Implements">implements</FONT> <A HREF="../../../../nl/justobjects/pushlet/client/PushletClientListener.java.html">PushletClientListener</A>, <A HREF="../../../../nl/justobjects/pushlet/core/Protocol.java.html">Protocol</A> {
<FONT ID="LN">22</FONT><A NAME="22"></A>    <FONT ID="Private">private</FONT> TextArea textArea;
<FONT ID="LN">23</FONT><A NAME="23"></A>    <FONT ID="Private">private</FONT> String host = <FONT ID="StringLiteral">"localhost"</FONT>;
<FONT ID="LN">24</FONT><A NAME="24"></A>    <FONT ID="Private">private</FONT> <FONT ID="Int">int</FONT> port = <FONT ID="IntegerLiteral">8080</FONT>;
<FONT ID="LN">25</FONT><A NAME="25"></A>    <FONT ID="Private">private</FONT> String subject;
<FONT ID="LN">26</FONT><A NAME="26"></A>    <FONT ID="Private">private</FONT> <A HREF="../../../../nl/justobjects/pushlet/client/PushletClient.java.html">PushletClient</A> pushletClient;
<FONT ID="LN">27</FONT><A NAME="27"></A>    <FONT ID="Private">private</FONT> String VERSION = <FONT ID="StringLiteral">"15.feb.05 #5"</FONT>;
<FONT ID="LN">28</FONT><A NAME="28"></A>    <FONT ID="Private">private</FONT> String PUSH_MODE = Protocol.MODE_PULL;
<FONT ID="LN">29</FONT><A NAME="29"></A>
<FONT ID="LN">30</FONT><A NAME="30"></A>    <FONT ID="FormalComment">/** One-time setup. */</FONT>
<FONT ID="LN">31</FONT><A NAME="31"></A>    <FONT ID="Public">public</FONT> <FONT ID="Void">void</FONT> init() {
<FONT ID="LN">32</FONT><A NAME="32"></A>        <FONT ID="SingleLineComment">// Subject to subscribe to
<FONT ID="LN">33</FONT><A NAME="33"></A></FONT>        subject = getParameter(P_SUBJECT);
<FONT ID="LN">34</FONT><A NAME="34"></A>
<FONT ID="LN">35</FONT><A NAME="35"></A>        host = getDocumentBase().getHost();
<FONT ID="LN">36</FONT><A NAME="36"></A>        port = getDocumentBase().getPort();
<FONT ID="LN">37</FONT><A NAME="37"></A>
<FONT ID="LN">38</FONT><A NAME="38"></A>        <FONT ID="SingleLineComment">// Hmm sometimes this value is -1...(Mozilla with Java 1.3.0 on Win)
<FONT ID="LN">39</FONT><A NAME="39"></A></FONT>        <FONT ID="If">if</FONT> (port == -<FONT ID="IntegerLiteral">1</FONT>) {
<FONT ID="LN">40</FONT><A NAME="40"></A>            port = <FONT ID="IntegerLiteral">80</FONT>;
<FONT ID="LN">41</FONT><A NAME="41"></A>        }
<FONT ID="LN">42</FONT><A NAME="42"></A>
<FONT ID="LN">43</FONT><A NAME="43"></A>        setLayout(<FONT ID="New">new</FONT> GridLayout(<FONT ID="IntegerLiteral">1</FONT>, <FONT ID="IntegerLiteral">1</FONT>));
<FONT ID="LN">44</FONT><A NAME="44"></A>        textArea = <FONT ID="New">new</FONT> TextArea(<FONT ID="IntegerLiteral">15</FONT>, <FONT ID="IntegerLiteral">40</FONT>);
<FONT ID="LN">45</FONT><A NAME="45"></A>        textArea.setForeground(Color.yellow);
<FONT ID="LN">46</FONT><A NAME="46"></A>        textArea.setBackground(Color.gray);
<FONT ID="LN">47</FONT><A NAME="47"></A>        textArea.setEditable(<FONT ID="False">false</FONT>);
<FONT ID="LN">48</FONT><A NAME="48"></A>        add(textArea);
<FONT ID="LN">49</FONT><A NAME="49"></A>        p(<FONT ID="StringLiteral">"PushletApplet - "</FONT> + VERSION);
<FONT ID="LN">50</FONT><A NAME="50"></A>    }
<FONT ID="LN">51</FONT><A NAME="51"></A>
<FONT ID="LN">52</FONT><A NAME="52"></A>    <FONT ID="Public">public</FONT> <FONT ID="Void">void</FONT> start() {
<FONT ID="LN">53</FONT><A NAME="53"></A>        dbg(<FONT ID="StringLiteral">"start()"</FONT>);
<FONT ID="LN">54</FONT><A NAME="54"></A>        bailout();
<FONT ID="LN">55</FONT><A NAME="55"></A>
<FONT ID="LN">56</FONT><A NAME="56"></A>        <FONT ID="Try">try</FONT> {
<FONT ID="LN">57</FONT><A NAME="57"></A>            pushletClient = <FONT ID="New">new</FONT> <A HREF="../../../../nl/justobjects/pushlet/client/PushletClient.java.html">PushletClient</A>(host, port);
<FONT ID="LN">58</FONT><A NAME="58"></A>            p(<FONT ID="StringLiteral">"Created PushletClient"</FONT>);
<FONT ID="LN">59</FONT><A NAME="59"></A>
<FONT ID="LN">60</FONT><A NAME="60"></A>            pushletClient.join();
<FONT ID="LN">61</FONT><A NAME="61"></A>            p(<FONT ID="StringLiteral">"Joined server"</FONT>);
<FONT ID="LN">62</FONT><A NAME="62"></A>
<FONT ID="LN">63</FONT><A NAME="63"></A>            pushletClient.listen(<FONT ID="This">this</FONT>, PUSH_MODE);
<FONT ID="LN">64</FONT><A NAME="64"></A>            p(<FONT ID="StringLiteral">"Listening in mode="</FONT> + PUSH_MODE);
<FONT ID="LN">65</FONT><A NAME="65"></A>
<FONT ID="LN">66</FONT><A NAME="66"></A>            pushletClient.subscribe(subject);
<FONT ID="LN">67</FONT><A NAME="67"></A>            p(<FONT ID="StringLiteral">"Subscribed to="</FONT> + subject);
<FONT ID="LN">68</FONT><A NAME="68"></A>        } <FONT ID="Catch">catch</FONT> (<A HREF="../../../../nl/justobjects/pushlet/util/PushletException.java.html">PushletException</A> pe) {
<FONT ID="LN">69</FONT><A NAME="69"></A>            p(<FONT ID="StringLiteral">"Error exception="</FONT> + pe);
<FONT ID="LN">70</FONT><A NAME="70"></A>            bailout();
<FONT ID="LN">71</FONT><A NAME="71"></A>        }
<FONT ID="LN">72</FONT><A NAME="72"></A>    }
<FONT ID="LN">73</FONT><A NAME="73"></A>
<FONT ID="LN">74</FONT><A NAME="74"></A>    <FONT ID="Public">public</FONT> <FONT ID="Void">void</FONT> stop() {
<FONT ID="LN">75</FONT><A NAME="75"></A>        dbg(<FONT ID="StringLiteral">"stop()"</FONT>);
<FONT ID="LN">76</FONT><A NAME="76"></A>        bailout();
<FONT ID="LN">77</FONT><A NAME="77"></A>    }
<FONT ID="LN">78</FONT><A NAME="78"></A>
<FONT ID="LN">79</FONT><A NAME="79"></A>    <FONT ID="FormalComment">/** Abort event from server. */</FONT>
<FONT ID="LN">80</FONT><A NAME="80"></A>    <FONT ID="Public">public</FONT> <FONT ID="Void">void</FONT> onAbort(<A HREF="../../../../nl/justobjects/pushlet/core/Event.java.html">Event</A> theEvent) {
<FONT ID="LN">81</FONT><A NAME="81"></A>        p(theEvent.toXML());
<FONT ID="LN">82</FONT><A NAME="82"></A>        bailout();
<FONT ID="LN">83</FONT><A NAME="83"></A>    }
<FONT ID="LN">84</FONT><A NAME="84"></A>
<FONT ID="LN">85</FONT><A NAME="85"></A>    <FONT ID="FormalComment">/** Data event from server. */</FONT>
<FONT ID="LN">86</FONT><A NAME="86"></A>    <FONT ID="Public">public</FONT> <FONT ID="Void">void</FONT> onData(<A HREF="../../../../nl/justobjects/pushlet/core/Event.java.html">Event</A> theEvent) {
<FONT ID="LN">87</FONT><A NAME="87"></A>        p(theEvent.toXML());
<FONT ID="LN">88</FONT><A NAME="88"></A>    }
<FONT ID="LN">89</FONT><A NAME="89"></A>
<FONT ID="LN">90</FONT><A NAME="90"></A>    <FONT ID="FormalComment">/** Heartbeat event from server. */</FONT>
<FONT ID="LN">91</FONT><A NAME="91"></A>    <FONT ID="Public">public</FONT> <FONT ID="Void">void</FONT> onHeartbeat(<A HREF="../../../../nl/justobjects/pushlet/core/Event.java.html">Event</A> theEvent) {
<FONT ID="LN">92</FONT><A NAME="92"></A>        p(theEvent.toXML());
<FONT ID="LN">93</FONT><A NAME="93"></A>    }
<FONT ID="LN">94</FONT><A NAME="94"></A>
<FONT ID="LN">95</FONT><A NAME="95"></A>    <FONT ID="FormalComment">/** Error occurred. */</FONT>
<FONT ID="LN">96</FONT><A NAME="96"></A>    <FONT ID="Public">public</FONT> <FONT ID="Void">void</FONT> onError(String message) {
<FONT ID="LN">97</FONT><A NAME="97"></A>        p(message);
<FONT ID="LN">98</FONT><A NAME="98"></A>        bailout();
<FONT ID="LN">99</FONT><A NAME="99"></A>    }
<FONT ID="LN">00</FONT><A NAME="100"></A>
<FONT ID="LN">01</FONT><A NAME="101"></A>    <FONT ID="Private">private</FONT> <FONT ID="Void">void</FONT> bailout() {
<FONT ID="LN">02</FONT><A NAME="102"></A>        <FONT ID="If">if</FONT> (pushletClient != <FONT ID="Null">null</FONT>) {
<FONT ID="LN">03</FONT><A NAME="103"></A>            p(<FONT ID="StringLiteral">"Stopping PushletClient"</FONT>);
<FONT ID="LN">04</FONT><A NAME="104"></A>            <FONT ID="Try">try</FONT> {
<FONT ID="LN">05</FONT><A NAME="105"></A>                pushletClient.leave();
<FONT ID="LN">06</FONT><A NAME="106"></A>            } <FONT ID="Catch">catch</FONT> (<A HREF="../../../../nl/justobjects/pushlet/util/PushletException.java.html">PushletException</A> ignore) {
<FONT ID="LN">07</FONT><A NAME="107"></A>                p(<FONT ID="StringLiteral">"Error during leave pe="</FONT> + ignore);
<FONT ID="LN">08</FONT><A NAME="108"></A>
<FONT ID="LN">09</FONT><A NAME="109"></A>            }
<FONT ID="LN">10</FONT><A NAME="110"></A>            pushletClient = <FONT ID="Null">null</FONT>;
<FONT ID="LN">11</FONT><A NAME="111"></A>        }
<FONT ID="LN">12</FONT><A NAME="112"></A>    }
<FONT ID="LN">13</FONT><A NAME="113"></A>
<FONT ID="LN">14</FONT><A NAME="114"></A>    <FONT ID="FormalComment">/** Generic print. */</FONT>
<FONT ID="LN">15</FONT><A NAME="115"></A>    <FONT ID="Private">private</FONT> <FONT ID="Void">void</FONT> p(String s) {
<FONT ID="LN">16</FONT><A NAME="116"></A>        dbg(<FONT ID="StringLiteral">"event: "</FONT> + s);
<FONT ID="LN">17</FONT><A NAME="117"></A>        <FONT ID="Synchronized">synchronized</FONT> (textArea) {
<FONT ID="LN">18</FONT><A NAME="118"></A>            textArea.append(s + <FONT ID="StringLiteral">"\n"</FONT>);
<FONT ID="LN">19</FONT><A NAME="119"></A>        }
<FONT ID="LN">20</FONT><A NAME="120"></A>    }
<FONT ID="LN">21</FONT><A NAME="121"></A>
<FONT ID="LN">22</FONT><A NAME="122"></A>    <FONT ID="FormalComment">/** Generic print. */</FONT>
<FONT ID="LN">23</FONT><A NAME="123"></A>    <FONT ID="Private">private</FONT> <FONT ID="Void">void</FONT> dbg(String s) {
<FONT ID="LN">24</FONT><A NAME="124"></A>        System.out.println(<FONT ID="StringLiteral">"[PushletApplet] "</FONT> + s);
<FONT ID="LN">25</FONT><A NAME="125"></A>    }
<FONT ID="LN">26</FONT><A NAME="126"></A>}
<FONT ID="LN">27</FONT><A NAME="127"></A>
<FONT ID="LN">28</FONT><A NAME="128"></A><FONT ID="MultiLineComment">/*
<FONT ID="LN">29</FONT><A NAME="129"></A> * $Log: PushletApplet.java,v $
<FONT ID="LN">30</FONT><A NAME="130"></A> * Revision 1.16  2005/02/18 09:54:15  justb
<FONT ID="LN">31</FONT><A NAME="131"></A> * refactor: rename Publisher Dispatcher and single Subscriber class
<FONT ID="LN">32</FONT><A NAME="132"></A> *
<FONT ID="LN">33</FONT><A NAME="133"></A> * Revision 1.15  2005/02/15 15:46:36  justb
<FONT ID="LN">34</FONT><A NAME="134"></A> * client API improves
<FONT ID="LN">35</FONT><A NAME="135"></A> *
<FONT ID="LN">36</FONT><A NAME="136"></A> * Revision 1.14  2005/02/15 13:28:33  justb
<FONT ID="LN">37</FONT><A NAME="137"></A> * use new PushletClient lib
<FONT ID="LN">38</FONT><A NAME="138"></A> *
<FONT ID="LN">39</FONT><A NAME="139"></A> * Revision 1.13  2004/10/25 21:22:26  justb
<FONT ID="LN">40</FONT><A NAME="140"></A> * *** empty log message ***
<FONT ID="LN">41</FONT><A NAME="141"></A> *
<FONT ID="LN">42</FONT><A NAME="142"></A> * Revision 1.12  2004/10/24 13:52:52  justb
<FONT ID="LN">43</FONT><A NAME="143"></A> * small fixes in client lib
<FONT ID="LN">44</FONT><A NAME="144"></A> *
<FONT ID="LN">45</FONT><A NAME="145"></A> * Revision 1.11  2004/10/24 12:58:19  justb
<FONT ID="LN">46</FONT><A NAME="146"></A> * revised client and test classes for new protocol
<FONT ID="LN">47</FONT><A NAME="147"></A> *
<FONT ID="LN">48</FONT><A NAME="148"></A> * Revision 1.10  2004/09/03 22:35:37  justb
<FONT ID="LN">49</FONT><A NAME="149"></A> * Almost complete rewrite, just checking in now
<FONT ID="LN">50</FONT><A NAME="150"></A> *
<FONT ID="LN">51</FONT><A NAME="151"></A> * Revision 1.9  2004/08/12 13:18:54  justb
<FONT ID="LN">52</FONT><A NAME="152"></A> * cosmetic changes
<FONT ID="LN">53</FONT><A NAME="153"></A> *
<FONT ID="LN">54</FONT><A NAME="154"></A> * Revision 1.8  2003/08/17 21:06:37  justb
<FONT ID="LN">55</FONT><A NAME="155"></A> * version info change
<FONT ID="LN">56</FONT><A NAME="156"></A> *
<FONT ID="LN">57</FONT><A NAME="157"></A> * Revision 1.7  2003/08/15 08:37:41  justb
<FONT ID="LN">58</FONT><A NAME="158"></A> * fix/add Copyright+LGPL file headers and footers
<FONT ID="LN">59</FONT><A NAME="159"></A> *
<FONT ID="LN">60</FONT><A NAME="160"></A> * Revision 1.6  2003/08/14 21:43:10  justb
<FONT ID="LN">61</FONT><A NAME="161"></A> * improved Java client lifecycle; notably stopping listener thread
<FONT ID="LN">62</FONT><A NAME="162"></A> *
<FONT ID="LN">63</FONT><A NAME="163"></A> * Revision 1.5  2003/08/13 14:00:00  justb
<FONT ID="LN">64</FONT><A NAME="164"></A> * some testing for applets; no real change
<FONT ID="LN">65</FONT><A NAME="165"></A> *
<FONT ID="LN">66</FONT><A NAME="166"></A> * Revision 1.4  2003/05/19 22:53:33  justb
<FONT ID="LN">67</FONT><A NAME="167"></A> * more fixes for applets
<FONT ID="LN">68</FONT><A NAME="168"></A> *
<FONT ID="LN">69</FONT><A NAME="169"></A> * Revision 1.3  2003/05/19 21:56:29  justb
<FONT ID="LN">70</FONT><A NAME="170"></A> * various fixes for applet clients
<FONT ID="LN">71</FONT><A NAME="171"></A> *
<FONT ID="LN">72</FONT><A NAME="172"></A> * Revision 1.2  2003/05/18 16:15:08  justb
<FONT ID="LN">73</FONT><A NAME="173"></A> * support for XML encoded Events
<FONT ID="LN">74</FONT><A NAME="174"></A> *
<FONT ID="LN">75</FONT><A NAME="175"></A> * Revision 1.1.1.1  2002/09/24 21:02:33  justb
<FONT ID="LN">76</FONT><A NAME="176"></A> * import to sourceforge
<FONT ID="LN">77</FONT><A NAME="177"></A> *
<FONT ID="LN">78</FONT><A NAME="178"></A> */</FONT>
<FONT ID="LN">79</FONT><A NAME="179"></A></pre><TABLE id="Header" border="0" cellpadding="0" cellspacing="0" width="100%">
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<font size="4">PushletApplet.java</font>
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